Perzanowski, Kajetan, Maciej Januszczak, and Aleksandra Wołoszyn-Gałęza. “Seasonal Movements of Wisents (Bison Bonasus L., 1758) in the Bieszczady Mountains (SE Poland)”. Biological Letters 49, no. 1 (February 14, 2013): 11–17. Accessed February 24, 2026. https://pressto.amu.edu.pl/index.php/BIOLET/article/view/v10120-012-0002-7.